Freestar V6-4.2L VIN 2 (2004)
Engine Control Module: Customer Interest
Engine Controls - Engine Knock/Ping/MIL/Misfire DTC's
TSB 10-3-3
03/01/10
DAMAGED SPARK PLUG ELECTRODE/MIL DTC P030X
FORD:
2004-2007 Freestar
MERCURY:
2004-2007 Monterey
This article supersedes TSB 7-14-1 to update the vehicle model years covered, Service Procedure and Part List.
ISSUE
Some 2004-2007 Freestar and Monterey vehicles may experience a melted or damaged spark plug electrode, malfunction indicator lamp (MIL) with
diagnostic trouble codes (DTC's) P030X, rough idle, engine knock/ping on acceleration. Pre-ignition (which yields these symptoms) may be caused by
water entering the powertrain control module (PCM).
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
1. Remove PCM from vehicle. Refer to Workshop Manual (WSM), Section 303-14.
2. Remove the PCM cover by carefully bending back the four (4) retaining clips holding the galvanized metal cover to the top plate. (Figure 1)
3. Look for evidence of water contamination within the PCM (liquid water, rust, water stains or deposits). (Figure 2)
a. If evidence of water is found, obtain a replacement PCM and remove its cover before continuing on to Step 4.
